function showWxCode()
{
	document.getElementById('QRCode_wx').style.display = "block";
}
function hideWxCode()
{
	document.getElementById('QRCode_wx').style.display = "none";
}
function showQqCode()
{
	document.getElementById('QRCode_qq').style.display = "block";
}
function hideQqCode()
{
	document.getElementById('QRCode_qq').style.display = "none";
}
function showTbCode()
{
	document.getElementById('QRCode_tb').style.display = "block";
}
function hideTbCode()
{
	document.getElementById('QRCode_tb').style.display = "none";
}
